[jdk11u-dev] RFR: 8210669: Some launcher tests assume a pre-JDK 9 run-time image layout

[Aleksey Shipilev]

Backporting for `11.0.13-oracle` parity.

Additional testing:
 - [x] `tools/launcher/` pass

-------------

Commit messages:
 - Backport 6bc30c6707aed5e5f444def64b296c0eb9021863

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/211/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=211&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8210669
  Stats: 26 lines in 3 files changed: 11 ins; 6 del; 9 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/211.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/211/head:pull/211

PR: https://git.openjdk.java.net/jdk11u-dev/pull/211